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ZZ Wave
Asked: 2022-08-12 08:25:07 +0800 CST

How to make ping-check in case of split-brain?

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What I want - in case of split-brain (connectivity loss between two nodes) ONLY, each node should check ping status and start resources if ping is OK. How to implement this?

"pcs config show", pretty self-explaining:

Cluster Name: pbx_cluster
Corosync Nodes:
 freepbx01 freepbx02
Pacemaker Nodes:
 freepbx01 freepbx02

Resources:
 Resource: virtual_ip (class=ocf provider=heartbeat type=IPaddr2)
  Attributes: ip=10.16.12.21 cidr_netmask=24 nic=eth4lan
  Meta Attrs: migration-threshold=10 failure-timeout=60s
  Operations: start interval=0s timeout=20s (virtual_ip-start-interval-0s)
              stop interval=0s timeout=20s (virtual_ip-stop-interval-0s)
              monitor interval=30s (virtual_ip-monitor-interval-30s)
 Resource: asterisk (class=ocf provider=heartbeat type=asterisk)
  Attributes: user=asterisk group=asterisk
  Meta Attrs: migration-threshold=10 failure-timeout=60s
  Operations: start interval=0s timeout=20 (asterisk-start-interval-0s)
              stop interval=0s timeout=20 (asterisk-stop-interval-0s)
              monitor interval=60s timeout=30 (asterisk-monitor-interval-60s)
 Clone: DefaultGatewayCheck-clone
  Meta Attrs: target-role=Stopped is-managed=false
  Resource: DefaultGatewayCheck (class=ocf provider=pacemaker type=ping)
   Attributes: dampen=5s multiplier=1000 host_list="10.16.12.254"
   Operations: start interval=0s timeout=60 (DefaultGatewayCheck-start-interval-0s)
               stop interval=0s timeout=20 (DefaultGatewayCheck-stop-interval-0s)
               monitor interval=60s timeout=60 (DefaultGatewayCheck-monitor-interval-60s)

Stonith Devices:
Fencing Levels:

Location Constraints:
  Resource: asterisk
    Enabled on: freepbx01 (score:INFINITY) (role: Started) (id:cli-prefer-asterisk)
  Resource: virtual_ip
    Enabled on: freepbx01 (score:INFINITY) (role: Started) (id:cli-prefer-virtual_ip)
Ordering Constraints:
  start virtual_ip then start asterisk (kind:Mandatory) (id:order-virtual_ip-asterisk-mandatory)
Colocation Constraints:
  asterisk with virtual_ip (score:INFINITY) (id:colocation-asterisk-virtual_ip-INFINITY)
Ticket Constraints:

Alerts:
 No alerts defined

Resources Defaults:
 migration-threshold: 10
 failure-timeout: 60s
Operations Defaults:
 No defaults set

Cluster Properties:
 cluster-infrastructure: corosync
 cluster-name: pbx_cluster
 dc-version: 1.1.24-3850484742
 have-watchdog: false
 last-lrm-refresh: 1659519197
 no-quorum-policy: ignore
 stonith-enabled: false

Quorum:
  Options:
ping

0 Answers